PHOTOCURABLE RESIN COMPOSION

• Main Authors: UKACHI, TAKASHI, MATSUMURA,AYAO, HARUTA,YUICHI, WATANABE TSUYOSHI
• Format: Patent
• Language: English; Korean
• Published: 25.01.2000
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; APPARATUS SPECIALLY ADAPTED THEREFOR; AUXILIARY PROCESSES IN PHOTOGRAPHY; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTROGRAPHY; HOLOGRAPHY; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS THEREFOR; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; ORIGINALS THEREFOR; PERFORMING OPERATIONS; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE: A photocurable resin composition is to provide a three dimensional object having excellent mechanical strength, high dimensional accuracy and a three dimensional object with excellent stability in shape using an optical fabricating process. CONSTITUTION: The photocurable resin composition comprises (A) a cationic polymerized compound, (B)a cationic photoinitiator, (c) an ethylenically unsaturated monomer, (D) a radical photoinitiator, (E) a polyether polyol having on the ethylenically unsaturated monomer having three or more ethylenically unsaturated bonds in one molecule. 본 발명은 광-경화성 수지조성물에 관한 것으로서, 상기 수지조성물은 우수한 기계적 강도와 높은 치수 정확도를 갖는 삼차원 물체를 제공할 수 있으며, 상기 수지조성물은 광학 이차가공 방법을 사용하여 형태 및 특성에 있어서 우수한 안정성을 갖는 삼차원 물체를 제공할 수 있으며, 상기 조성물은 (A)양이온중합 화합물, (B)양이온성 광-개시제, (C)에틸렌계 불포화 단량체, (D)라디칼 광-개시제, (E)평균 약 3개 또는 그 이상의 히드록실기를 갖는 폴리에테르 폴리올을 포함하며, 상기 에틸렌계 불포화 단량체의 적어도 60중량%는 한 개의 분자내에 세 개 또는 그 이상의 에틸렌계 불포화 결합을 갖는 다관능가 단량체인 것을 특징으로 한다.